MAYBE
0.00/0.02	 The problem does not contain well-formed TRSs:
0.00/0.02	   Strict Trs:
0.00/0.02	     { U62(tt()) -> s(length(L))
0.00/0.02	     , length(cons(N)) -> U61(isNatList())
0.00/0.02	     , length(nil()) -> 0()
0.00/0.02	     , zeros() -> cons(0())
0.00/0.02	     , U11(tt()) -> tt()
0.00/0.02	     , U21(tt()) -> tt()
0.00/0.02	     , U31(tt()) -> tt()
0.00/0.02	     , U41(tt()) -> U42(isNatIList())
0.00/0.02	     , U42(tt()) -> tt()
0.00/0.02	     , isNatIList() -> tt()
0.00/0.02	     , isNatIList() -> U31(isNatList())
0.00/0.02	     , isNatIList() -> U41(isNat())
0.00/0.02	     , U51(tt()) -> U52(isNatList())
0.00/0.02	     , U52(tt()) -> tt()
0.00/0.02	     , isNatList() -> tt()
0.00/0.02	     , isNatList() -> U51(isNat())
0.00/0.02	     , U61(tt()) -> U62(isNat())
0.00/0.02	     , isNat() -> tt()
0.00/0.02	     , isNat() -> U11(isNatList())
0.00/0.02	     , isNat() -> U21(isNat()) }
0.00/0.02	   StartTerms: basic terms
0.00/0.02	   Strategy: none
0.00/0.02	EOF